CN1624350A - Motor dust proof bearing assembly - Google Patents
Motor dust proof bearing assembly Download PDFInfo
- Publication number
- CN1624350A CN1624350A CN 200310116996 CN200310116996A CN1624350A CN 1624350 A CN1624350 A CN 1624350A CN 200310116996 CN200310116996 CN 200310116996 CN 200310116996 A CN200310116996 A CN 200310116996A CN 1624350 A CN1624350 A CN 1624350A
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- bearing
- dustproof sheet
- central siphon
- face
- bearing assembly
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- Motor Or Generator Frames (AREA)
Abstract
This invention relates to a dustproof bearing component for motor. It includes the axis pipe which is in the empty axis pipe. It is in the pipe and locates in the one side of the dust piece. The axle is self-lubricating axle and with hole for rotor axle rod throughing. The dust-proof chip and axle forms a oil back channel.
Description
Technical field
The invention belongs to motor component, particularly a kind of motor shield bearing assembly.
Background technique
As shown in Figure 1, the motor of commonly using is made of pedestal 10 ', stator 20 ' and rotor 30 '.Pedestal 10 ' is in conjunction with central siphon 11 ', and is installed with at least one bearing (sleeve bearing) 12 ' in central siphon 11 '.Whereby, the axostylus axostyle 31 ' of rotor 30 ' can be arranged in the axis hole 120 ' of bearing 12 ', makes rotor 30 ' rotatable being combined on the pedestal 10 '.Usually, bearing (sleeve bearing) 12 ' have lubricating oil can be along with the rotation of axostylus axostyle 31 ', and flow between bearing 12 ' and the central siphon 11 ' by the end face of axis hole 120 ' inwall, bearing 12 ', the corner cut 121 ' of bearing 12 ' end face periphery in regular turn, flow back into bearing 12 ' inside again.Therefore, the fluid of bearing 12 ' can form circulation voluntarily, and lubricated axis hole 120 ' surface, reducing the friction between axis hole 120 ' and the axostylus axostyle 31 ', and then reduces motor Rotation Noise and prolongation motor working life.
Though bearing 12 ' can reduce the loss of motor element, when known motor real-world operation, the fluid of bearing 12 ' splashes easily and overflows outside the central siphon 11 '.Moreover dust in air enters central siphon 11 ' easily, and accumulates on the bearing 12 ' with lubricating oil, forms greasy dirt 90 thereby dust is mixed with fluid.Because greasy dirt 90 is driven by bearing 12 ' end face fluid, therefore, will build up, and cause the fluid can't smooth and easy circulation and enter again between bearing 12 ' and the central siphon 11 ' in corner cut 121 ' position.As a result, greasy dirt 90 blocks the circulation of fluid, and causes and lack lubricatedly between axis hole 120 ' and the axostylus axostyle 31 ', and then causes rotor 30 ' rotating speed to reduce, produce noise and frictional heat, when serious even cause axostylus axostyle 31 ' stuck and reduce motor working life.
For this reason, U. S. Patent the 6th, 336, No. 745, ' the axle combined structure (Oil-Impregnated Bearing and Rotor Shaft Combination) of oil-impregnated bearing and rotor ' and U. S. Patent the 6th, 435, No. 722, ' the constructing (Combination Structure forOil-Impregnated Bearing) in conjunction with improvement of oil-impregnated bearing ' patent of invention discloses motor except comprising pedestal, stator, rotor, outside central siphon and the oil-impregnated bearing, the loam cake that further is the Jiong tee section in the setting of oil-impregnated bearing end face, and make the axostylus axostyle cover be set in positioning ring between loam cake and the oil-impregnated bearing, and the outer ring surface of oil-impregnated bearing is further offered a beacon oil return conduit.Rotor when running, loam cake and positioning ring can be further in order to preventing that fluid from sputtering central siphon, and prevent that dust from entering central siphon.Yet the composite structure of loam cake, positioning ring, central siphon and oil-impregnated bearing is too complicated, and is unfavorable for assembling operation.The most important thing is that the lower edge of Jiong shape loam cake closely is fastened on the corner cut place of oil-impregnated bearing end face periphery usually, thereby, stop the oil return conduit, and make fluid can't enter between oil-impregnated bearing and the central siphon smoothly, thereby the reduction cycle efficiency, and cause lack between axis hole and the axostylus axostyle lubricated.As a result, cause rotating speed to reduce equally, produce noise and frictional heat, even cause axostylus axostyle stuck, reduce motor working life.Therefore, it still is necessary the dustproof construction of the bearing of motor that further improvement is known.
Summary of the invention
The purpose of this invention is to provide and a kind ofly prevent to gather greasy dirt, reduce pivoting friction, reduce and rotate noise, prolong the motor motor shield bearing assembly in working life.
The present invention includes central siphon, be located in the bearing in the central siphon and be arranged in the central siphon and be positioned at the dustproof sheet of bearing one end for hollow tube; Bearing is to hold the self-lubricating bearing that contains fluid, and it is provided with the axis hole that can supply rotor shaft to wear; Dustproof sheet is provided with the axis hole that can supply rotor shaft to wear; Form at least one back oil road between dustproof sheet and the bearing.
Wherein:
Dustproof sheet is positioned at the bearing top; Back oil road is formed at the dustproof sheet bottom surface for being radial being arranged with.
The dustproof sheet of bottom surface formation back oil road is extended upward by axis hole and forms interior ring flange.
The dustproof sheet that the bottom surface forms back oil road is arranged with the Oil Guide district that is communicated with back oil road in the bottom surface by the axis hole edge.
Back oil road is formed at the bearing end face.
The back oil road that is formed at the bearing end face extends to outer circumferential face and bottom surface from end face.
Dustproof sheet closely cooperates and is combined in the central siphon, and and the bearing end face between form to constitute the gap in oil return space.
Dustproof sheet is shaped in the central siphon, and and the bearing end face between form to constitute the gap in oil return space.
The dustproof sheet outer periphery extend upward the formation ring wall, and the formation outer ring flange that extends radially outwardly in the ring wall top; Dustproof sheet, and makes and forms the gap that constitutes the oil return space between dustproof sheet and the bearing end face on central siphon by ring wall and outer ring flange positioning combination.
Owing to the present invention includes central siphon, be located in the bearing in the central siphon and be arranged in the central siphon and be positioned at the dustproof sheet of bearing one end for hollow tube; Bearing is to hold the self-lubricating bearing that contains fluid, and it is provided with the axis hole that can supply rotor shaft to wear; Dustproof sheet is provided with the axis hole that can supply rotor shaft to wear; Form at least one back oil road between dustproof sheet and the bearing.During assembling, when being assembled in the present invention on the motor that comprises pedestal, stator and rotor, with the central siphon secure bond on pedestal, and clip location stator; In the central siphon bottom top bracing member and the clasp that is the ㄩ tee section is set, bearing and dustproof sheet are positioned in the central siphon, and the dustproof sheet bottom surface is contacted with the bearing end face; The axostylus axostyle of rotor is arranged in the axis hole of dustproof sheet and bearing in regular turn, and shores rotor shaft and hold lubricating oil by the top bracing member that is the ㄩ tee section; Prevent that by clasp axostylus axostyle breaks away from bearing.When rotor turns round, can prevent that by dustproof sheet the fluid in the bearing from sputtering central siphon; Simultaneously, in the time of in dust enters central siphon, can avoid dust to contact, and make dust accretion in the dustproof sheet end face with bearing by dustproof sheet; Moreover, owing to form at least one back oil road between dustproof sheet and the bearing, when fluid overflows via the axis hole of bearing, fluid is refluxed glibly enter gap between bearing and the central siphon by forming at least one back oil road between dustproof sheet and the bearing, so that being formed, fluid circulates; So, circulation fluid can keep the lubricity between axis hole and the axostylus axostyle, avoiding causing between axis hole and the axostylus axostyle excessive friction, to rotate noise, and then keeps the accurate rotating speed of rotor, and guarantees motor working life.Not only prevent to gather greasy dirt, and reduce pivoting friction, reduce and rotate noise, prolong motor working life, thereby reach purpose of the present invention.
Description of drawings
Fig. 1, electric motor structure schematic sectional view for commonly using.
Fig. 2, for decomposition texture schematic isometric of the present invention.
Fig. 3, for structural representation sectional view of the present invention.
Fig. 4, be A portion partial enlarged drawing among Fig. 3.
Fig. 5, for dustproof sheet structural representation stereogram of the present invention (being provided with interior ring flange).
Fig. 6, be A portion partial enlarged drawing (being provided with interior ring flange) among Fig. 3.
Fig. 7, be dustproof sheet structural representation stereogram of the present invention (be provided with in ring Oil Guide district).
Fig. 8, be A portion partial enlarged drawing among Fig. 3 (ring Oil Guide district in being provided with).
Fig. 9, for decomposition texture schematic isometric of the present invention (bearing is provided with back oil road).
Figure 10, for structural representation sectional view of the present invention (bearing is provided with back oil road).
Figure 11, be structural representation sectional view of the present invention (between dustproof sheet and the bearing form oil return space).
Figure 12, for structural representation sectional view of the present invention (dustproof sheet is provided with ring wall and outer ring flange).
Embodiment
As Fig. 2, Fig. 3, shown in Figure 4, the present invention includes central siphon 11, bearing (sleeve bearing) 12 and dustproof sheet 13.
Bearing (sleeve bearing) 12 can hold the various self-lubricating bearings that contain fluid for being selected from, for example the copper bearing made of powder metallurgy or the ceramic bearing of making through sintering.Bearing 12 is provided with the axis hole 120 that can supply rotor 30 axostylus axostyles 31 to wear, and its end face periphery forms corner cut 121.Bearing 12 is located in the central siphon 11.
During assembling, when being assembled in the present invention on the motor that comprises pedestal 10, stator 20 and rotor 30, on pedestal 10, and utilize top flange 111 clips location stator 20 with central siphon 11 secure bond; In central siphon 11 bottoms top bracing member 14 and the clasp 15 that is the ㄩ tee section is set, bearing 12 and dustproof sheet 13 are positioned in the central siphon 11, and dustproof sheet 13 bottom surfaces are contacted with bearing 12 end faces; The axostylus axostyle 31 of rotor 30 is arranged in the axis hole 131,120 of dustproof sheet 13 and bearing 12 in regular turn, and shores rotor 30 axostylus axostyles 31 and hold lubricating oil by the top bracing member 14 that is the ㄩ tee section; Prevent that by clasp 14 axostylus axostyle 31 breaks away from bearing 12.
When rotor 30 runnings, can prevent that by dustproof sheet 13 fluid in the bearing 12 from sputtering central siphon 11.Simultaneously, in the time of in dust 91 enters central siphon 11, can avoid dust 91 to contact, and make dust 91 be piled up in dustproof sheet 13 end faces with bearing 12 by dustproof sheet 13.Moreover, because dustproof sheet 13 bottom surfaces are provided with back oil road 132, when fluid overflows via the axis hole 120 of bearing 12, by the back oil road 132 of dustproof sheet 13 bottom surfaces fluid is refluxed glibly by bearing 12 end faces and periphery corner cut 121 and enter gap between bearing 12 and the central siphon 13, so that fluid formation is circulated.So, circulation fluid can keep the lubricity between axis hole 120 and the axostylus axostyle 31, avoiding causing between axis hole 120 and the axostylus axostyle 31 excessive friction, to rotate noise, and then keeps rotor 30 accurate rotating speeds, and guarantees motor working life.
As Fig. 5, shown in Figure 6, dustproof sheet 13a can be made by plastic cement or metal material, and it is provided with axis hole 131 and at least one back oil road 132 that can wear for rotor 30 axostylus axostyles 31, and in axis hole 131 extend upward form in ring flange 133.Back oil road 132 is formed at its bottom surface for being radial being arranged with.
Ring flange 133 can stop and reduce dust 91 and enters via the axis hole 131 of dustproof sheet 13a in the dustproof sheet 13a.And when dust 91 accumulation was too much, the lubricant oil of avoiding by interior ring flange 133 spilling via dustproof sheet 13a axis hole mixed with dust 91.
As Fig. 7, shown in Figure 8, dustproof sheet 13b can be made by plastic cement or metal material, it is provided with axis hole 131 and at least one back oil road 132 that can supply rotor 30 axostylus axostyles 311 to wear, back oil road 132 is formed at its bottom surface for being radial being arranged with, and is arranged with the Oil Guide district 134 that is communicated with back oil road 132 in the bottom surface by axis hole 131 edges.
Whereby, when the axostylus axostyle 31 of rotor 30 rotated, the fluid that is overflowed by bearing 12 axis holes 120 flowed into Oil Guide district 134 earlier, and makes the easier back oil road 132 that flows into swimmingly of fluid.
As Fig. 9, shown in Figure 10, bearing (sleeve bearing) 12a is selected to hold the various self-lubricating bearings that contain fluid, for example the copper bearing made of powder metallurgy or the ceramic bearing of making through sintering.Bearing 12a is provided with the axis hole 120 that can supply rotor 30 axostylus axostyles 31 to wear, and its end face periphery forms corner cut 121, and forms at least one back oil road 122 that extends to outer circumferential face and bottom surface from end face in bearing 12a.
Dustproof sheet 13c can be made by plastic cement or metal material, and it is provided with the axis hole 131 that can supply rotor 30 axostylus axostyles 31 to wear.
Whereby, dustproof in dustproof sheet 13c is assembled in central siphon 11 and when being positioned at bearing 12a end face by dustproof sheet 13c, and lubrication oil circulation is flowed by the back oil road 122 that is arranged on the bearing 12a.
As shown in figure 11, dustproof sheet 13c can be made by plastic cement or metal material, and it is provided with the axis hole 131 that can supply rotor 30 axostylus axostyles 31 to wear.
Dustproof sheet 13c sets firmly or is shaped on the central siphon 11 with drive fit, and and bearing 12 end faces between form to constitute the gap in oil return space 16.
Whereby, when rotor 30 runnings, can prevent that by dustproof sheet 13c the fluid in the bearing 12 from sputtering central siphon 11.Simultaneously, in the time of in dust enters central siphon 11, can avoid dust to contact, and make dust accretion in dustproof sheet 13c end face with bearing 12 by dustproof sheet 13c.Moreover, by the oil return space 16 that forms between dustproof sheet 13c and bearing 12 end faces, when fluid overflows via the axis hole 120 of bearing 12, fluid is refluxed by bearing 12 end faces and periphery corner cut 121 glibly enter gap between bearing 12 and the central siphon 11, so that fluid formation is circulated.
As shown in figure 12, dustproof sheet 13d can be made by plastic cement or metal material, and it is provided with the axis hole 131 that can wear for rotor 30 axostylus axostyles 31, and its outer periphery extend upward and form ring wall 135, and extends radially outwardly in ring wall 135 tops and to form outer ring flange 136.
During assembling, can make the quick positioning combination of dustproof sheet 13d on the top of central siphon 11 flange 111, and make the gap that forms formation oil return space 16 between dustproof sheet 13d and bearing 12 end faces by ring wall 135 and outer ring flange 136.Whereby, when rotor 30 runnings, can prevent that by dustproof sheet 13d the fluid in the bearing 12 from sputtering central siphon 11.Simultaneously, in the time of in dust enters central siphon 11, can avoid dust to contact, and make dust accretion in dustproof sheet 13d end face with bearing 12 by dustproof sheet 13d.Moreover, by the oil return space 16 that forms between dustproof sheet 13d and bearing 12 end faces, when fluid overflows via the axis hole 120 of bearing 12, fluid is refluxed by bearing 12 end faces and periphery corner cut 121 glibly enter gap between bearing 12 and the central siphon 11, so that fluid formation is circulated.
As mentioned above, the present invention reaches the oil return space 16 that forms by dustproof sheet 13,13a, 13b, 13c, 13d between the various back oil roads 132,122 that dustproof sheet 13,13a, 13b and bearing 12a upward form or dustproof sheet 13c, 13d and bearing 12, the working life that can prevent to gather greasy dirt, minimizing pivoting friction, reduction rotation noise really and prolong motor.
Claims (9)
1, a kind of motor shield bearing assembly, it is included as the central siphon of hollow tube and is located in the interior bearing of central siphon; Bearing is to hold the self-lubricating bearing that contains fluid, and it is provided with the axis hole that can supply rotor shaft to wear; It is characterized in that being provided with in the described central siphon dustproof sheet that is positioned at bearing one end; Dustproof sheet is provided with the axis hole that can supply rotor shaft to wear; Form at least one back oil road between dustproof sheet and the bearing.
2, motor shield bearing assembly according to claim 1 is characterized in that described dustproof sheet is positioned at the bearing top; Back oil road is formed at the dustproof sheet bottom surface for being radial being arranged with.
3, motor shield bearing assembly according to claim 2 is characterized in that dustproof sheet that described bottom surface forms back oil road is extended upward by axis hole to form interior ring flange.
4, motor shield bearing assembly according to claim 2 is characterized in that the dustproof sheet of described bottom surface formation back oil road is arranged with the Oil Guide district that is communicated with back oil road in the bottom surface by the axis hole edge.
5, motor shield bearing assembly according to claim 1 is characterized in that described back oil road is formed at the bearing end face.
6, motor shield bearing assembly according to claim 5 is characterized in that the described back oil road that is formed at the bearing end face extends to outer circumferential face and bottom surface from end face.
7, motor shield bearing assembly according to claim 1 is characterized in that described dustproof sheet closely cooperates to be combined in the central siphon, and and the bearing end face between form the gap that constitutes the oil return space.
8, motor shield bearing assembly according to claim 1 is characterized in that described dustproof sheet is shaped in the central siphon, and and the bearing end face between form to constitute the gap in oil return space.
9, motor shield bearing assembly according to claim 1 is characterized in that described dustproof sheet outer periphery extend upward the formation ring wall, and the formation outer ring flange that extends radially outwardly in the ring wall top; Dustproof sheet, and makes and forms the gap that constitutes the oil return space between dustproof sheet and the bearing end face on central siphon by ring wall and outer ring flange positioning combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101169964A CN100363638C (en) | 2003-12-05 | 2003-12-05 | Motor dust proof bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101169964A CN100363638C (en) | 2003-12-05 | 2003-12-05 | Motor dust proof bearing assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624350A true CN1624350A (en) | 2005-06-08 |
| CN100363638C CN100363638C (en) | 2008-01-23 |
Family
ID=34760840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101169964A Expired - Fee Related CN100363638C (en) | 2003-12-05 | 2003-12-05 | Motor dust proof bearing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100363638C (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336754B1 (en) * | 1997-12-05 | 2002-01-08 | Asahi Kogaku Kogyo Kabushiki Kaisha | Setting communication system in accordance with type of lens attached to body |
| CN2350582Y (en) * | 1998-08-19 | 1999-11-24 | 建准电机工业股份有限公司 | Self-lubricating bearing device for small motor |
| CN2366596Y (en) * | 1999-03-08 | 2000-03-01 | 建准电机工业股份有限公司 | Shaft structure of heat radiation fan |
| CN2408282Y (en) * | 1999-12-29 | 2000-11-29 | 建准电机工业股份有限公司 | Assembling rotor axle for oil containing bearing |
| US6435722B1 (en) * | 2001-01-26 | 2002-08-20 | Sunonwealth Electric Machine Industry Co., Ltd. | Combination structure for oil-impregnated bearing |
-
2003
- 2003-12-05 CN CNB2003101169964A patent/CN100363638C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN100363638C (en) | 2008-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20131205 |